Take this ad for a 10 megabyte Morrow Designs Winchester disk drive: the lowest capacity unit sold for $3,695 (US), which is equivalent to $8,451.63 in 2007 dollars. The ad says you could bundle together four of their 26 megabyte hard drives for a total of 104 megabytes. The cost? $19,980, which translates to a stunning $45,700.57 in 2007 dollars. To put that into perspective, $45,700 could buy you roughly 120 terabytes of consumer-level hard drive storage today — 1,153,846 times more space than in 1981.
